Radiator-core.



J. M. FEDDERS.

RADIATOR CORE. I APPLICATION FILE D NOV-H.19l5. I Patented June 27, 1916.

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RADIATOR CORE.

- APPLICATION FILED NOV. 11. I915. I 1,188,746. Patented June 27,1916.

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INVENTEJR" WM box/W ATTEIRNEYE J. M. FEDDERS.

RAPIATOR CORE. APPLICATION FI'LED NOV-{1.1915- PatentedJune27,1916.

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4 ED TATES PATEfiT I JOHN M. FEDDERS, 0F BUFFALO, NEW YOEK, ASSIGNQR T0 MAN'UFELCEUEI "1G: COMPANY, INC., 0F BUFFALO, NEW XORK, A CGEPQELATIGN It; w IQ-" ar;

Application filed November 11, 1915.

To all whom it may concern Be it known that 1, JOHN 1V. FnDDERs, a citizen of the "United States, residing at Buffalo, in the county of Erie and State of New York, have invented new and useful Improvements in Radiator-Cores, of which the following is a specification.

This invention relates to that type of cores for automobile radiators comprising a pin-- character each unit is made up of two strips of sheet metal each of which is bent or corrugated. so as to produce a wall having a plurality of plaits projecting from one side thereof and engaging at their crowns w1th the wall of the companion strip between the plaits of the latter, thereby forming a plurality of air tubes. lhe walls of these strips are also provided at their longitudinal edges with ofi'-set portions which engage with correspondingly oif-set portions on adjacent Walls of other units so that the opposing walls of adjacent units together form water passa es. It has been found in practice that it is difficult to hold a plurality of such units in an assembled condition relatively to each other preparatory to connecting the adjacent strips of the several units with each other and it is therefore the object of this invention to provide the walls or strips of the units with meanswhereby adjacent units may be interlocked with each other against displacement in a direction parallel with the length of the units, which means preferably comprise centering or looking teats arranged on the ofl-set end portions of each unit wall and engaging between the base portions of the plies of the plaits of the adjacent wall of another unit.

In the accompanying drawings: Figure l is a fragmentary front elevation of a radiator core embodying my improvements. Figs, 2 and 3 are vertical sections taken on the correspondingly numbered lines in Fig. 4. Figs. l and 5 are horizontal sections taken on the correspondingly numbered lines in Fig. 3. Figs. 6 and 7 are fragmentary perspective views of two strips of sheet metal which have been bent, formed or Specification of Letters Patent.

Ea-tented e 232", serial no. cease.

shapedpreparatory to assembling them for producing a unit of the radiator core.

Similar characters of 1. nence indicate corresponding parts througnout the several views. I

In its general organization radiator comprises a plurality of longitudinal Water passages 1 which are preferably arranged vertlcally and parallel, and a plurality of a1r tubes or passages 2 which preferably arranged horizontally between the water tubes, 'a tier of such air tubes being arranged between every two adjacent water passages.

In building this radiat r core some is made up of a plurality of units, each unit being constructed of two strips of sheet metal which are so formed. that they produce a tier of air tubes or passages between them and also two walls which when assembled with other units produce water tubes or passages between the opposing walls of ad jacent units. For this purpose each strip of sheet metal is bent or formed to produce a longitudinal wall 3 and a plurality of plaits or doubled wings 4 projecting laterally from one side of this wall, each plait having the outer end or crown of its plies connected while the base portions thereof disconnected from each other but connected with those portions of the respective wall on opposite sides of the plait. Two of such cor rugated strips are so assembled that the crowns of the plaits on one wall engage with the wall of the companion strip between the plaits of the latter so as to produce a tier of a1r tubes 2 between the two strips. At the upper and lower ends of the strips the same are connected with each other in any suitable manner, for instance, by lock scams 5, 5 as shown. Instead of making the two walls and sets of plaits of each unit of two strips of metal the same may be made from a single or continuous strip.

Each plait has the end portions of its plies closed together, as shown at 6 in Figs. 1, 3, 6 and 7 while the intermediate plaits thereof are separated, as shown at- 7 in Figs. 2 and 7, so asto permit the water to enter between the same but prevent the escape of thesame therefrom at opposite ends of the plants. The wall of each strip is also preferably provided on the same side on which 8 each of which is arranged midway between two plaits on the respective wall and receives the crown of a plait on the opposing wall of thesame unit.

Adjacent to its opposite longitudinal edges each of the walls of a unit is provided with off-set portions 9 which project later- .ally from that side of the wall opposite to tions on the adjacent wall of another unit so as to form an upright longitudinal water passage 1 between adjacent units which is closed at its opposite longitudinal edges but is open at its upper and lower ends for the purpose of admitting water at one end of this passage and discharging the same from the opposite end thereof.

In order to retain the sey'eral units of the radiator core in an assembled position preparatory to soldering the strips of units to each other, centering 0r locking means are provided which consist of a plurality of centering or looking teats or spurs 10 each of which is formed on one of the off-set portions of one of the strips and projects laterally therefrom between the base portions of one closed end of a plaiton the adjacent wall of another unit, as best shown in Figs. 1, 3 and 4. By this means the opposing walls of two adjacent units of the radiator core are reliablyheld in position relatively 'to each other in the direction of the length of the units so that the air tubes of the several units are arranged in proper transverse aline;:. nt and avoid displacement of these units preparatory to permanently connecting the same with each other by dipping the opposite longitudinal edges on the several strips while thus assembeled in a bath of solder in the usual and well known manner. The means for retaining the several units against displacement in this manner are ex ceedingly simple and do not increase the cost of the dies for making the same or require any additional material and as they facilitate manipulation of the radiator core in the process of manu'larturing the same, a material reduction in. the cost of manufacture is efl'ected. i urthermore, by providing the walls of each unit with centering or locking teats which engage between the base of the plaits of adjacent unil; the sheet metal ol' ll1e several units is brought closer together so that not only less solder is required for connecting the same but a much firmer connection is produced between the several units and the strength of the radiator as a whole is materially increased.

I claim as my inv ntion:

1. A radiator core comprising a plurality of units each of which is constructed of two strips of metal which are bent so that each strip forms one wall of a longitudinal tube and aplurality of plaits which are adapted to engage at their crowns with the wall of the other strip between the plaits of the latter and produce therewith a plurality of transverse tubes hich are arranged perpendicular to said longitudinal tube, and each of said walls being provided on the side 0pposite the plaits thereof and midway between said plaits with laterally projecting centering teats each of which is adapted to engage between the base portions of the plait's of the adjacent wall of another unit 2. A radiator core comprising a plurality of units each of which is constructed of two strips of metal which are bent so that each strip forms one wall of a longitudinal tube and a plurality of plaits'which are adapted to engage at their crowns with the wall of the other strip between the plaits of the latter and produce therewith a plurality of transverse tubes which are arranged perpendicular to said longitudinal tube and each oi. said walls being provided at its longitudinal edges on the side opposite the plaits thereof with longitudinal off-sets which are adapted to engage with corresponding offsets of an adjacent wall of another unit and each of said off-sets being provided between its ends with a laterally projecting centering teat which fits in between the base portions of a plait on said adjacent wall of another unit.

3. A radiator core comprising a plurality of units each of which is constructed of two strips of metal which are bent so that each strip forms one wall of a longitudinal tube and a plurality of plaits which are adapted to engags at their crowns with the wall of the other strip between the plaits of the latter and produce therewith a plurality of transverse tubes which are arranged perpendicular to said longitudinal tube, each of said plaits having the end portions of its plies closed together while the intermediate parts thereof are separated, and each of said walls being provided on its side having the plaits with grooves which receive the crowns of the plaits of the companion wall, while its opposite side isprovidcd at its longitudinal edges with oft-set portions which are adapted to engage mil-responding off-set portions of the. adjacent wall of another unit, and each off-set having a laterally projecting centering teat which engages between the base portions of the plies of a plait on the adjacent wall of another unit.

JOHN M. FE'DDERS. 

